The first occurrence of Jaeger's 'New Faith' leitmotiv in the orchestral prelude to Elgar's 'The Kingdom' (in piano reduction) - a theme which recurs throughout the work. Click on the image for higher resolution

Elgar managed to write two of the projected three works, The Apostles (ending with Christ's ascension) and The Kingdom, which dramatises the apostles in Jerusalem and the descent of the Holy Spirit. Part three, The Last Judgement, never progressed beyond sketches.

After its strong orchestral prelude, The Kingdom, a narrative work running for over ninety minutes, has five sections — In the Upper Room, At the Beautiful Gate, Pentecost, The Sign of Healing and The Upper Room — but came across as a big, deliciously romanticised and continuously varied whole, helped by Partington's swift tempi.

Nimble and well-rehearsed, the Three Choirs Festival Chorus (formed from members of the choral societies of each participating city — Gloucester, Hereford and Worcester) took on various roles in this piece, notably Disciples and Holy Women, 'the people', the mystic chorus (sopranos and altos only), and, at one point, providing a choral recitative.

In addition to fine violin solos from the Philharmonia's leader, Zsolt-Tihamér Visontay, a super team of vocal soloists took the main roles of Mary (Claire Rutter, soprano), Mary Magdalene (Sarah Connolly, contralto) and Peter (Ashley Riches). Due to the advertised tenorsoloistJames Oxley being indisposed, one of Gloucester Cathedral's choral scholars, Magnus Walker, gallantly stepped in at literally only a few hours' notice, to sing the tenor role of John, receiving a big audience cheer at the end. Only eighteen years old, he leaves Gloucester for London in September 2016 to take up a scholarship at the Royal Academy of Music to study with Ben Johnson.

There's more Gurney in the festival too: in Gloucester Lads on Wednesday, Marcus Farnsworth sings the Gurney cycleLights Out, and Gurney is featured alongside Rachmaninov, Howells, Ireland, Bridge and Worcester-based composerIan Venables in Mark Bebbington's piano recital An English Rachmaninov on Friday. Paul Spicer's talk An Unlikely Trio on Wednesday concentrates on Gurney and two of his fellow Gloucester Cathedral choristers: Herbert Howells and Ivor Novello.

Friday evening's Enigma and Carmina concert features the first performance of a Three Choirs Festival commission (in association with the Mindsong charity): Joseph Phibbs' short Memento Musica, which uses as its theme one of the earliest known fully notated melodies — the Song of Seikilos from about 100BC. Incidentally, it was good to spot German composer Torsten Rasch, whose A Foreign Field was first performed at the Worcester Three Choirs Festival in 2014, in last night's audience.

The festival's theme this year is the eight hundredth anniversary of the coronation of the nine-year-old King Henry III, in the building which would become Gloucester Cathedral. Musically, this is represented by Stile Antico's concert Sacred or Profane? on Monday and by thirteenth century music and poetry from the group Conductus on Tuesday.

If you're unable to attend this week's Gloucester Three Choirs Festival, Wednesday's Choral Evensong, featuring the first performance of another Festival commission, Ian King's The Gloucester Service, plus a rare chance to hear music by the Festival ArtisticDirector's father, Kendrick Partington, will be broadcast live on BBC Radio 3. Roderic Dunnett (who kindly invited me to last night's concert) plans to report here on the whole festival in due course. Further information about this week (and next year's festival at Worcester) is available at 3choirs.org